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SubjectRe: [PATCH] MIPS: Loongson64: Give chance to build under !CONFIG_NUMA and !CONFIG_SMP
On Thu, Dec 03, 2020 at 08:32:52PM +0800, Tiezhu Yang wrote:
> In the current code, we can not build under !CONFIG_NUMA and !CONFIG_SMP
> on the Loongson64 platform, it seems bad for the users who just want to
> use pure single core (not nosmp) to debug, so do the following things to
> give them a chance:
>
> (1) Do not select NUMA and SMP for MACH_LOONGSON64 in Kconfig, make NUMA
> depends on SMP, and then just set them in the loongson3_defconfig.
> (2) Move szmem() from numa.c to init.c and add prom_init_memory() under
> !CONFIG_NUMA.
> (3) Clean up szmem() due to the statements of case SYSTEM_RAM_LOW and
> SYSTEM_RAM_HIGH are the same.
> (4) Remove the useless declaration of prom_init_memory() and add the
> declaration of szmem() in loongson.h to avoid build error.
>
> Signed-off-by: Youling Tang <tangyouling@loongson.cn>
> Signed-off-by: Jinyang He <hejinyang@loongson.cn>
> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
> ---
> arch/mips/Kconfig | 3 +-
> arch/mips/configs/loongson3_defconfig | 2 +
> arch/mips/include/asm/mach-loongson64/loongson.h | 2 +-
> arch/mips/loongson64/init.c | 49 ++++++++++++++++++++++
> arch/mips/loongson64/numa.c | 52 +-----------------------
> 5 files changed, 54 insertions(+), 54 deletions(-)
>
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index 44a47ad..2034c66 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -490,8 +490,6 @@ config MACH_LOONGSON64
> select SYS_SUPPORTS_ZBOOT
> select SYS_SUPPORTS_RELOCATABLE
> select ZONE_DMA32
> - select NUMA
> - select SMP
> select COMMON_CLK
> select USE_OF
> select BUILTIN_DTB
> @@ -2755,6 +2753,7 @@ config ARCH_SPARSEMEM_ENABLE
> config NUMA
> bool "NUMA Support"
> depends on SYS_SUPPORTS_NUMA
> + depends on SMP

can you solve your problem without this hunk ? I don't want to make NUMA
depeding on SMP. NUMA just selects memory archtitecture.

Thomas.

--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]

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